THE LAWSON HILL PROPERTY OWNERS COMPANY
NPDES ID: COG317227
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 54 reporting violations.
Violations
May 31, 2026
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0184 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil and grease visual
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (INST MAX)
DMR, Monitor Only - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (30DA AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Copper, potentially dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (30DA AVG)
DMR, Limited - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.087 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (30DA AVG)
DMR, Limited - Overdue
Manganese, dissolved [as Mn]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.41700002 mg/L (30DA AVG)
DMR, Limited - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (INST MAX)
DMR, Limited - Overdue
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0046 mg/L (30DA AVG)
DMR, Limited - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0034 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, total
0% over limit
Discharged 0 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Overdue
Iron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Overdue
April 30, 2026
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (30DA AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Overdue
Manganese, dissolved [as Mn]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.41700002 mg/L (30DA AVG)
DMR, Limited - Overdue
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0184 mg/L (DAILY MX)
DMR, Limited - Overdue
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0046 mg/L (30DA AVG)
DMR, Limited - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (INST MAX)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Iron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (30DA AVG)
DMR, Limited - Overdue
Oil and grease visual
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (INST MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0034 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (30DA AVG)
DMR, Limited - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.087 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (DAILY MX)
DMR, Limited - Overdue
Copper, potentially dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (30DA AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Overdue
Flow, total
0% over limit
Discharged 0 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
March 31, 2026
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0046 mg/L (30DA AVG)
DMR, Limited - Overdue
Iron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (30DA AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Manganese, dissolved [as Mn]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.41700002 mg/L (30DA AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.087 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (30DA AVG)
DMR, Monitor Only - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (INST MAX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (30DA AVG)
DMR, Limited - Overdue
Copper, potentially dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, total
0% over limit
Discharged 0 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (DAILY MX)
DMR, Limited - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0034 mg/L (30DA AVG)
DMR, Limited - Overdue
Oil and grease visual
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (INST MAX)
DMR, Monitor Only - Overdue
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0184 mg/L (DAILY MX)
DMR, Limited - Overdue
December 31, 2025
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Overdue
Manganese, dissolved [as Mn]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.41700002 mg/L (30DA AVG)
DMR, Limited - Overdue
Oil and grease visual
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (INST MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (INST MAX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (DAILY MX)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Copper, potentially dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (30DA AVG)
DMR, Limited - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.087 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow, total
0% over limit
Discharged 0 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (30DA AVG)
DMR, Limited - Overdue
Iron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (30DA AVG)
DMR, Limited - Overdue
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0184 mg/L (DAILY MX)
DMR, Limited - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0034 mg/L (30DA AVG)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (30DA AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0046 mg/L (30DA AVG)
DMR, Limited - Overdue
November 30, 2025
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (INST MAX)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.087 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil and grease visual
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (INST MAX)
DMR, Monitor Only - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0034 mg/L (30DA AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Flow, total
0% over limit
Discharged 0 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
Copper, potentially dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (30DA AVG)
DMR, Limited - Overdue
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0046 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (30DA AVG)
DMR, Limited - Overdue
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0184 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Overdue
Manganese, dissolved [as Mn]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.41700002 mg/L (30DA AVG)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (30DA AVG)
DMR, Monitor Only - Overdue
Iron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (DAILY MX)
DMR, Limited - Overdue
October 31, 2025
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (30DA AVG)
DMR, Limited - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.087 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Oil and grease visual
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (INST MAX)
DMR, Monitor Only - Overdue
Manganese, dissolved [as Mn]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.41700002 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, total
0% over limit
Discharged 0 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
Iron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (DAILY MX)
DMR, Limited - Overdue
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0046 mg/L (30DA AVG)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (30DA AVG)
DMR, Monitor Only - Overdue
Copper, potentially dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (30DA AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0034 mg/L (30DA AVG)
DMR, Limited - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (INST MAX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0184 mg/L (DAILY MX)
DMR, Limited - Overdue
September 30, 2025
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0184 mg/L (DAILY MX)
DMR, Limited - Overdue
Selenium, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0046 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (30DA AVG)
DMR, Limited - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (INST MAX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0.200001 MGD (DAILY MX)
DMR, Limited - Overdue
Copper, potentially dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (30DA AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (MX 7D AV)
DMR, Limited - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.087 mg/L (DAILY MX)
DMR, Limited - Overdue
Lead, potentially dissolvd
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0034 mg/L (30DA AVG)
DMR, Limited - Overdue
Manganese, dissolved [as Mn]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.41700002 mg/L (30DA AVG)
DMR, Limited - Overdue
Iron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 1.00000005 mg/L (30DA AVG)
DMR, Limited - Overdue
Flow, total
0% over limit
Discharged 0 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
Oil and grease visual
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (INST MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (30DA AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (30DA AVG)
DMR, Limited - Overdue
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (8 hours ago)